Contact Us! For an appointment to visit CM Optiks or for an eye exam with Dr. Merker, please contact us at 212.535.5600 or CMOptiks@aol.com. CM Optiks 157 East 72nd Street (between Lexington and 3rdAvenue) Ground Floor New York, NY 10021 Store Hours: 9:00 a.m.–5:30 p.m. (Monday–Friday) (Special early morning appointment hours available upon request.)